However, a few developed companies have monopolize the liquefaction plant
market [2]. ... Research and development of LNG cycles was started in the 1960s
by D. L. Andress of Phillips company in the development ... A schematic diagram
of the process is shown in Fig. ... In a liquefaction cycle, first a natural gas is
cooled to -25 in the propane cycle, then it is cooled to -75 in the Innovative
Materials foranbsp;...